the defense has been trying to cast doubt on that testimony. suggesting any screams were the high- pitched screams of pistorius . >> catherine: at one point this story is covered his ears to state as his lawyer argued that we've done with so that we bring damage by the gunshots to her head she could not possibly have screamed for help with more than a hundred witnesses lined up the drama is likely to last for weeks and in an astonishing show of compassion reeva steenkamp's mother gm says that she forgives him for killing her beautiful daughter saying she does not want to live with this bitterness. with more than a hundred witnesses lined up. the drama is likely to last for and in an astonishing show she doesn't want to live >> catherine: if he's convicted.pistorius could face at least 25 years in prison before he's eligible for parole. but few people are taking any bets on the outcome at this point. pistorius has a high-powered attorney who is considered one of the best in south >> this is just unfortunate because of our girls are trying to tru